## What kinda math should i know?

A place to air possible concerns or difficulties in understanding ProjectEuler problems. This forum is not meant to publish solutions. This forum is NOT meant to discuss solution methods or giving hints how a problem can be solved.
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MrYuri
Posts: 1
Joined: Thu Oct 08, 2020 1:53 am

### What kinda math should i know?

What kind of math should i know for these questions? ive done a few but now they seem to include math that i dont know.
So what should i learn?
pjt33
Posts: 70
Joined: Mon Oct 06, 2008 6:14 pm

### Re: What kinda math should i know?

"Elementary number theory" will help with an awful lot of them. "Enumerative combinatorics" is also a popular topic. It helps to be able to recognise a Markov process and know how to analyse it with linear algebra. There are plenty of probability questions, so you'll need to know what expectation is and techniques for calculating it.

Also, if you read the threads which you unlock when you solve a problem, the techniques which people mention are often key to solving later problems in the same area.
Tomdraug
Posts: 2
Joined: Mon Nov 09, 2020 12:21 am

### Re: What kinda math should i know?

It is excellent question. Also answer is interesting.

I’m a developer with technical university background and I have just discovered this delightfully frightening site. I solved problem 41 easily and I started another one, 731.

This is nightmare. I don’t even know how to approach it, ie what book I need, how to write anything in one of 20+ languages I know
I know what infinite series is and all the notation, but the problem is far harder that that.

All in all - it will be nice journey
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I solved 731 lol